Improvement in grain-drills



A. N NORRIS.

Grain-Drills.

No.149,674. PatentedApriH4,-1874.

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UNITED STATES PATENT OFFICE.

ALBERT N. NORRIS, OF RUSHVILLE, INDIANA.

IMPROVEMENT lN GRAIN-DRILLS.

Specification forming part of Letters Patent No. 149,674, dated April 14, 1874; application filed August 21, 1873.

To all whom it may concern:

Be it known that I, ALBERT N. NoRRIs, of Rushville, Indiana, have invented a new and useful Improvement in Grain-Drills; and I do hereby declare that the following is a full, clear, and exact description thereof, reference being bad to the accompanying drawings and to the letters of reference marked thereon.

Figure 1 represents a top view of framework of a seed-drill and its connecting mechanism. Fig. 2 represents a rear view of the boxing for the gearing, by which the feeding apparatus is operated. Fig. 3 represents a horizontal section of the parts exhibited in Fig. 2. Figs. 4, 5, and 6 represent detached parts of the gear-boxing exhibited in Figs. 2 and 3, and at H in Fig. l.

A is the center bar of the frame, having the driving-wheel B, With its axle boxed at G, which carries beveled gear D, to work with gear E on shaft N, which enters that of gear J, through which shaft and its connections the feed apparatus is operated. O O are pivoted or hinged bars, linked together adjustably at V V U. The seed-boxes S G R are located upon the bars 0 O A, and the gear-shafts P 1 F connect the gears Y Z J with the feeding apparatus. The gear K is an intermediate or idler, used to give proper direction to the revolutions of gear Z. This gearing (shown in Fig. 3) operates the feed apparatus and as it is necessary to adjust the hose-bars O O of the seeddrill laterally to vary the width of the rows, provision has been made for a like adjustment of the several feeding devices which discharge the feed. My invention is designed to effect this purpose, and consists in making the boxing of the central gears Y Z J K in several parts, so that the pinions or gears Y Z may be adjusted horizontally with their pivoted boxing M, while still meshing with their adjoining gears J K, andthereby permit thelateral adjustment of the pivoted bars 0 O with their respective hoes, seed-boxes, and shafts P P. Shafts PP occupy the hubs, as seen at X X, of the adjustable gears Y Z. The central portion of the gear-boxing may be cast in two pieces, HH, with a horizontal division, as seen in Figs. 4 and 5, and lugs L L are cast thereon for the journals e e of the adjustable boxing M, in which the gears Y Z have their hubs journaled, as shown at S S, Fig. 2. The cogs of the gears J K Y Z should be made bcveling longitudinally, so that they will remain in mesh when the position of the latter two is changed by the lateral adjustment of the side bars U 0, and shafting P P thereon.

-It will be understood that the Feed-boxes are operated through the shafts P, P, F, and N, and the above-named gear-in g.

The reason for making the boxing H H and M M in divisions, as denoted by the line X X, is to facilitate the casting operation, and admit the gear-hubs or journals into their respective boxes.

The curved or angular support T serves as a guide, upon which the adjustable bars 0 O slide when adjusted laterally for the purpose specified. It is evident that the face of the gear-cogs may be made in the arc of a circle or oval instead of beveling, as stated above, and retain their connection or mesh with each other when adjusted, as described.

I claim as my invention The sectional case H H, with pivoted bearings M M, and inclosed gears J K Y Z, constructed and arranged substantially as and for the purpose described.

Witness my hand this 6th day of August, A. D. 187 3.

ALBERT N. NORRIS.

Witnesses:

WILLARD O. P-EoK, H. P. K. PEGK. 

